Binary Exploitation

Binary Exploitation

1 post

Writeups

Writeups

2 posts

SCIST 5th Final CTF
2025-07-21 4.2k words 26 mins

SCIST 5th Final CTF

SCIST 5th Final CTF 2thi need more pwn :(gemini is my god Webdig-blind2 command injection+side channel attack brute force Exploit 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354import requestsimport stringURL = "http://lab.scist.org:31601
thjcc 2025
2025-04-21 3.9k words 23 mins

thjcc 2025

THJCC 2025Official 6th place and All 9th place WarmUpWelcome beep boop beep boopconvert binary to text and base64 decode01010110 01000101 01101000 01001011 01010001 00110000 01001110 00110111 01100010 01101010 01000010 01111001 01100010 01010100 01010010 01110011 01011000 01111010 01001110 01110101
Heap Exploitation
2025-04-12 814 words 3 mins

Heap Exploitation

Heap Exploitation 基於NTU Computer Security Fall 2019所寫的筆記 yuawn NTU-Computer-Security Heap workflow 通過 nmmap或 brk跟kernel要memory 跟kernel要了memory會放在glibc再透過malloc來跟glibc要memory chunks 注意heap是以16 bytes唯一排Allocated chunk malloc拿到的Free chunk free掉的Top Chunk 未分配的 Allocated chunk chunk header也可叫met